================
@@ -207,6 +208,17 @@ class SIMemOpInfo final {
// AGENT scope as a conservatively correct alternative.
if (this->Scope == SIAtomicScope::CLUSTER && !ST.hasClusters())
this->Scope = SIAtomicScope::AGENT;
+
+ // When max flat work-group size is at most the wavefront size, the
+ // work-group fits in a single wave, so LLVM workgroup scope matches
+ // wavefront scope. Demote workgroup → wavefront here for fences and for
+ // atomics with ordering stronger than monotonic.
----------------
krzysz00 wrote:
```suggestion
// If there's only one wave, workgroup scope == wavefront scope ... unless
there are DMAs, a property we check elsewhere.
```
https://github.com/llvm/llvm-project/pull/224065
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